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Written for the working Java developer, Joshua Bloch's Effective Java Programming Language Guide provides a truly useful set of over 50 best practices and tips for writing better Java code. With plenty of advice from an indisputable expert in the field, this title is sure to be an indispensable resource for anyone who wants to get more out of their code. 　　As a veteran developer ... (展开全部) 　　Written for the working Java developer, Joshua Bloch's Effective Java Programming Language Guide provides a truly useful set of over 50 best practices and tips for writing better Java code. With plenty of advice from an indisputable expert in the field, this title is sure to be an indispensable resource for anyone who wants to get more out of their code. 　　As a veteran developer at Sun, the author shares his considerable insight into the design choices made over the years in Sun's own Java libraries (which the author acknowledges haven't always been perfect). Based on his experience working with Sun's best minds, the author provides a compilation of 57 tips for better Java code organized by category. Many of these ideas will let you write more robust classes that better cooperate with built-in Java APIs. Many of the tips make use of software patterns and demonstrate an up-to-the-minute sense of what works best in today's design. Each tip is clearly introduced and explained with code snippets used to demonstrate each programming principle. 　　Early sections on creating and destroying objects show you ways to make better use of resources, including how to avoid duplicate objects. Next comes an absolutely indispensable guide to implementing "required" methods for custom classes. This material will help you write new classes that cooperate with old ones (with advice on implementing essential requirements like the equals() and hashCode() methods). 　　The author has a lot to say about class design, whether using inheritance or composition. Tips on designing methods show you how to create understandable, maintainable, and robust classes that can be easily reused by others on your team. Sections on mapping C code (like structures, unions, and enumerated types) onto Java will help C programmers bring their existing skills to Sun's new language. Later sections delve into some general programming tips, like using exceptions effectively. The book closes with advice on using threads and synchronization techniques, plus some worthwhile advice on object serialization. 　　Whatever your level of Java knowledge, this title can make you a more effective programmer. Wisely written, yet never pompous or doctrinaire, the author has succeeded in packaging some really valuable nuggets of advice into a concise and very accessible guidebook that arguably deserves a place on most any developer's bookshelf. --Richard Dragan 　　Topics covered: 　　Best practices and tips for Java 　　Creating and destroying objects (static factory methods, singletons, avoiding duplicate objects and finalizers) 　　Required methods for custom classes (overriding equals(), hashCode(), toString(), clone(), and compareTo() properly) 　　Hints for class and interface design (minimizing class and member accessibility, immutability, composition versus inheritance, interfaces versus abstract classes, preventing subclassing, static versus nonstatic classes) 　　C constructs in Java (structures, unions, enumerated types, and function pointers in Java) 　　Tips for designing methods (parameter validation, defensive copies, method signatures, method overloading, zero-length arrays, hints for Javadoc comments) 　　General programming advice (local variable scope, using Java API libraries, avoiding float and double for exact comparisons, when to avoid strings, string concatenation, interfaces and reflection, avoid native methods, optimizing hints, naming conventions) 　　Programming with exceptions (checked versus run-time exceptions, standard exceptions, documenting exceptions, failure-capture information, failure atomicity) 　　Threading and multitasking (synchronization and scheduling hints, thread safety, avoiding thread groups) 　　Serialization (when to implement Serializable, the readObject(), and readResolve() methods)　　

本书教读者循序渐进地、系统地学习UML基础知识和应用技术。和前一版相比，本书内容根据UML 2.0进行了补充和更新，随书光盘包含了建模工具Poseidon的试用版。 　　 　　　　全书分为三部分24章。第一部分“基础知识”包括第1章到第15章，主要是介绍UML语言的基础知识以及面向对象的概念和思想，还简单介绍了UML 在开发过程的应用方法。第二部分“学习案例”包括第16章到第22章，结合实例详细分析了UML的应用方法与技巧，还介绍了UML在热点领域设计模式中的应用。第三部分“高级应用”包括最后两章，先是运用UML来描述设计模式和嵌入式系统，然后讨论UML在其他领域的应用前景。附录给出了每章的小测验答案，介绍了使用Microsoft Visio专业版绘制常用UML图的方法步骤，还对常用UML图进行了总结。

本书以其思想的深刻性和启发性著称。它从最基本的事实出发，在不知不觉中，把人们的注意力引向各数学分支最核心的内容。

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我自己做的毕业设计论文 题目是《网络爬虫的设计与实现》 java做的

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